Finite Element Analysis Of Axial Piston Pump And Optimization Design Of Shell

This paper makes finite element analysis for the structures of cylinder, shaft and shellwhich are the main components of SCY14-1B type axial piston pump, and makes structuraloptimization design of shell which has the greatest impact on plunger pump vibration.When axial piston pump works, cylinder generates more complex vibration under thecommon function of the spindle power, the shell binding, the oil film pressure as well as thefriction of each piston reciprocation. In order to avoid occurring resonance in the process ofcylinder operation, using solid modeling software Pro/E to establish the geometric model ofcylinder, and using ANSYS software to make modal analysis for cylinder. Through definingmaterial properties and mesh for the finite element model of cylinder, selecting modalanalysis method, imposing constraints, solving and analyzing the set model, finally getting theinherent frequency and vibration model of cylinder.Drive shaft can connect a lot of drive parts, still can transfer torque, and do rotary motiontogether with these drive parts, connected by rack and bearings. For safe and reliableoperation when drive shaft works, using ANSYS software to make structural static analysisand modal analysis for the drive shaft, through defining unit types and material properties,dividing grids, and setting the boundary conditions for finite element model of drive shaft,after solving to get the displacement, stress and deformation cloud of static analysis, and thenatural frequencies and vibration mode figure of modal analysis for the drive shaft. Finally,making analysis for the results.When axial piston pump works, shell generates complex vibration under the commonfunction of the drive shaft, cylinder, plunger, oil distribution plate and other components, aswell as the oil film pressure. Using ANSYS software to make modal analysis for shell, gettingthe modal results of shell through some necessary settings, and making analysis for the modalresults. Then making the structural optimization for shell to improve the inherent frequency under the premise of not increasing the quality in order to avoid occurring resonance in theprocess of shell operation, so as to ensure the safe operation of the entire piston pump.